Hey fellow ADHD friend! I also had a similar experience. It’s really awful and scary, so I’m sorry you experienced it.
My solution was simple: break each tab into quarters. After I got used to 5mg, 10mg ended up being the dose for me. It takes the edge off of ADHD but without making me feel like my soul had been scooped out with a melon baller.
Of course, this assumes you aren’t on an SR/XL/XR formulation, just straight medikinet.
I think it’s because they’re raised from birth having only heard these absurd notions and many never consider if they are truly absurd or not. It’s kinda sad.